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#include <bits/stdc++.h>

using namespace std;

typedef long long int LL;

#define st first
#define nd second
#define PLL pair <LL, LL>
#define PII pair <int, int>

const int N = 3e5 + 7;
const int T = 1 << 19;

int n, m, q;
PII Queries[N];
pair <PII, PII> Rectangle[N];

vector <int> Q[N];
map <PII, int> QueryPoints;

namespace Tree {
	
	bool lazy[T + T];
	int tree[T + T][2];
	
	void clear() {
		for(int i = 0; i < T + T; ++i) {
			tree[i][0] = tree[i][1] = 0;
			lazy[i] = false;
		}
	}
	
	inline void update(const int &cur) {
		tree[cur][0] = tree[cur + cur][0] + tree[cur + cur + 1][0];
		tree[cur][1] = tree[cur + cur][1] + tree[cur + cur + 1][1];		
	}
	
	inline void propagate(const int &cur) {
		if(lazy[cur] && cur < T) {
			lazy[cur] = false;
			lazy[cur + cur] ^= 1;
			lazy[cur + cur + 1] ^= 1;

			swap(tree[cur + cur][0], tree[cur + cur][1]);
			swap(tree[cur + cur + 1][0], tree[cur + cur + 1][1]);
		}
	}
	
	void init() {
		clear();
		for(int i = 1; i <= n; ++i)
			tree[T + i][0] = 1;

		for(int i = T - 1; i >= 1; --i)
			update(i);
	}
	
	void push(int s, int e, int cur = 1, int from = 0, int to = T - 1) {
		if(s <= from && to <= e) {
			lazy[cur] ^= 1;
			swap(tree[cur][0], tree[cur][1]);
			return;
		}
		
		int mid = (from + to) / 2;
		propagate(cur);
		
		if(s <= mid)
			push(s, e, cur + cur, from, mid);

		if(mid < e)
			push(s, e, cur + cur + 1, mid + 1, to);
		update(cur);
	}
	
	int getVal(int p, int cur = 1, int from = 0, int to = T - 1) {
		if(from == to)
			return tree[cur][0] ? 0 : 1;
		
		int mid = (from + to) / 2;
		propagate(cur);
		
		if(p <= mid)
			return getVal(p, cur + cur, from, mid);
		return getVal(p, cur + cur + 1, mid + 1, to);
	}
}

namespace Solve {
	LL all = 0;
	PLL tree[T + T];
	
	int rows[N];
	int cols[N];
	
	int cnt[N];
	int order[T + T];
	
	void add_tree(int p, int v) {
		p += T;
		while(p) {
			order[p] += v;
			p >>= 1;
		}
	}
	
	int ask_tree(int from, int to) {
		int ret = 0;
		from += T, to += T;
		
		while(from <= to) {
			if(from & 1)
				ret += order[from];
			
			if(!(to & 1))
				ret += order[to];
			
			from = (from + 1) >> 1;
			to = (to - 1) >> 1;
		}
		
		return ret;
	}
	
	void push(int s, int e, LL v, int cur = 1, int from = 0, int to = T - 1) {
		if(s <= from && to <= e) {
			tree[cur].st += v;
			tree[cur].nd += v;
			return;
		}
		
		int mid = (from + to) / 2;
		if(s <= mid)
			push(s, e, v, cur + cur, from, mid);
		
		if(mid < e)
			push(s, e, v, cur + cur + 1, mid + 1, to);
		tree[cur].st = max(tree[cur + cur].st, tree[cur + cur + 1].st) + tree[cur].nd;
	}
	
	void sub(int x, int y) {
		++all;

		/* update rows */
		add_tree(rows[x]--, -1);
		push(ask_tree(0, rows[x]) + 1, n, 1);
		add_tree(rows[x], 1);

		/* update columns */
		push(cols[y]--, n, 1);
	}
	
	void add(int x, int y) {
		--all;

		/* update rows */
		push(ask_tree(0, rows[x]), n, -1);
		add_tree(rows[x]++, -1);
		add_tree(rows[x], 1);
		
		/* update columns */
		push(++cols[y], n, -1);
	}
	
	void update(int x, int y) {
		int cur = QueryPoints[{x, y}];
		QueryPoints[{x, y}] ^= 1;
		
		if(cur)	add(x, y);
		else	sub(x, y);
	}
	
	LL get_ans() {
		return all - tree[1].st;
	}
	
	void init() {
		vector <int> sorted_rows(rows + 1, rows + n + 1);
		sort(sorted_rows.begin(), sorted_rows.end());
		
		all = 1LL * n * n;
		for(int i = 1; i <= n; ++i) {
			push(i, n, -sorted_rows[i - 1]);
			all -= rows[i];
			add_tree(rows[i], 1);
		}
		
		for(int i = 1; i <= n; ++i)
			cnt[cols[i]]++;
		
		int nr = 0; LL sum = 0;
		for(int i = 0; i <= n; ++i) {
			nr += cnt[i];
			sum += 1LL * i * cnt[i];
			push(i, i, 1LL * nr * i - sum);
		}
	}
}

void prepare(int *ans, bool answer_queries = false) {
	vector <vector <PII> > Order(n + 2);
	for(int i = 1; i <= m; ++i) {
		auto [s, e] = Rectangle[i].st;
		Order[s].push_back(Rectangle[i].nd);
		Order[e + 1].push_back(Rectangle[i].nd);
	}
	
	Tree::init();
	for(int i = 1; i <= n; ++i) {
		for(auto [s, e]: Order[i])
			Tree::push(s, e);
		ans[i] = Tree::tree[1][0];

		if(answer_queries) {
			for(auto v: Q[i])
				QueryPoints[{i, v}] = Tree::getVal(v);
		}
	}
	
/*	printf("we computes ans = [");
	for(int i = 1; i <= n; ++i)
		printf("%d%c ", ans[i], ",]"[i == n]);
	puts("");*/
}

int main() {
	scanf("%d %d %d", &n, &m, &q);
	for(int i = 1; i <= m; ++i) {
		int sx, sy, ex, ey;
		scanf("%d %d %d %d", &sx, &sy, &ex, &ey);
		Rectangle[i] = {{sx, ex}, {sy, ey}};
	}
	
	for(int i = 1; i <= q; ++i) {
		auto &[x, y] = Queries[i];
		scanf("%d %d", &x, &y);
		Q[x].push_back(y);
	}
		
	prepare(Solve::rows, true);
	for(int i = 1; i <= m; ++i)
		swap(Rectangle[i].st, Rectangle[i].nd);
	prepare(Solve::cols);
	
	Solve::init();
	printf("%lld\n", Solve::get_ans());
	
	for(int i = 1; i <= q; ++i) {
		auto &[x, y] = Queries[i];
		Solve::update(x, y);
		printf("%lld\n", Solve::get_ans());
	}
	
	return 0;
}